findmyKOL
Clinical trialNCT01218984CompletedPhase 2Interventional

ALK21-004: Single-dose Opiate Challenge of Medisorb® Naltrexone (VIVITROL®) in Adults Who Use Opioids

SponsorAlkermes, Inc.Enrollment27Opiate Dependence
View the registry record on ClinicalTrials.gov

Summary

The registered summary isn't in our current data snapshot. Read it on the ClinicalTrials.gov record ↗. Why? →

Investigators

The overall officials registered on this study. Names that resolve to a findmyKOL profile link to it; the rest are shown as registered.

A profile link is shown only when the registered name resolves to a person record with a confident, namesake-checked match; ambiguous names stay unlinked.

Sites

No facility list is in our current data snapshot for this study. The registry record on ClinicalTrials.gov ↗ carries any published locations. Why? →

Drugs studied

No drug or biological interventions are in our data for this study — it may test a procedure, device or behavioral intervention, or the intervention list isn't in our current snapshot. See the registry record ↗. Why? →

Registration & key dates

Registry attributes as recorded on the ClinicalTrials.gov study record.

Start
31 Mar 2002
Primary completion
31 May 2003
Completion
31 May 2003
Last update posted
11 Jan 2017
Registered enrollment
27
Registry id
NCT01218984

Source: ClinicalTrials.gov, via the CTTI AACT database, data as of 12 Jul 2026. Registry facts are shown as registered by the study sponsor; findmyKOL does not interpret them.